Travelers, in ascending the Thames by the steamboat from Rotterdam, on their return from an excursion to the Rhine, have often their attention strongly attracted by what appears to be a splendid palace on the banks of the river at Greenwich. The edifice is not a palace, however, but a hospital, or, rather, a retreat where the worn out, maimed, and crippled veterans of the English navy spend the remnant of their days in comfort and peace, on pensions allowed them by the government in whose service they have spent their strength or lost their limbs.